Java Glossary : JDialog

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JDialog

JDialogs are a type of Window that pop up over a parent JFrame, usually to ask the user to confirm something or display an About box. JDialogs can be modal or non-modal. Modal JDialogs monopolise the user's attention, preventing him from clicking anywhere but in the jdialog box.

For simple questions, you can use JOptionPane.showInputDialog which comes in two versions, one that just prompts for a String and one that selects an item from a list.

If JDialogs fail to paint anything, it could be because you forgot to do a setSize, validate(), or setVisible( true ). JDialog.setBackground does not work. Use jdialog.getContentPane().add( child );

Dialog is the AWT equivalent of JDialog.

documentation on JDialog : available:

on the web at java.Sun.com
on J: in the JDK 1.4.2_04: J:\j2sdk1.4.2_04\docs\api\javax\swing\JDialog.html
on J: in the JDK 1.5 beta: J:\Program Files\Java\j2sdk1.5.0\docs\api\javax\swing\JDialog.html

AWT ¤ decorated ¤ Dialog ¤ gotchas ¤ JOptionPane ¤ Swing ¤ window differences

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